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<h1 id="firstHeading" class="firstHeading">C99</h1>
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<tr class="t-nv"><td colspan="5"> C89 </td></tr>
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<p><b>ISO/IEC 9899:1999</b>, a.k.a. <b>C99</b>, is a previous revision of the C standard.
</p>
<table class="metadata plainlinks ambox mbox-small-left ambox-notice" style=""><tr><td class="mbox-empty-cell"></td><td class="mbox-text" style="">This section is incomplete<br>Reason: core/library features, TC1~TC3, DRs </td></tr></table>
<h2><span class="mw-headline" id="Obsolete">Obsolete</span></h2>
<h3><span class="mw-headline" id="Removed">Removed</span></h3>
<ul><li> Implicit <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">int</span></span></span> in declarations
</li><li> Implicit function declarations
</li></ul>
<h3><span class="mw-headline" id="Deprecated">Deprecated</span></h3>
<ul><li> <span class="t-lc"><a href="io/gets.html" title="c/io/gets">gets()</a></span>
</li></ul>
<h2><span class="mw-headline" id="New_language_features">New language features</span></h2>
<ul><li> Universal-character-names in <a href="language/identifier.html" title="c/language/identifier">identifiers</a>
</li><li> Increased <a href="language/identifier.html#Translation_limits" title="c/language/identifier">translation limits</a>
</li><li> <span class="t-c"><span class="mw-geshi c source-c"><span class="co1">//</span></span></span> <a href="comment.html" title="c/comment">comments</a>
</li><li> <a href="language/restrict.html" title="c/language/restrict"><tt>restrict</tt></a> pointers
</li><li> Enhanced <a href="language/arithmetic_types.html" title="c/language/arithmetic types">arithmetic types</a>
<ul><li> <span class="t-c"><span class="mw-geshi c source-c">_Bool</span></span>
</li><li> <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">long</span> <span class="kw4">long</span></span></span> and <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">unsigned</span> <span class="kw4">long</span> <span class="kw4">long</span></span></span>
</li><li> Extended integer types
</li><li> <a href="keyword/_Complex.html" title="c/keyword/ Complex"><tt>_Complex</tt></a> types (<span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">float</span> _Complex</span></span>, <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">double</span> _Complex</span></span>, and <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">long</span> <span class="kw4">double</span> _Complex</span></span>)
</li><li> <a href="keyword/_Imaginary.html" title="c/keyword/ Imaginary"><tt>_Imaginary</tt></a> types (<span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">float</span> _Imaginary</span></span>, <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">double</span> _Imaginary</span></span>, and <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">long</span> <span class="kw4">double</span> _Imaginary</span></span>)
</li></ul>
</li><li> Flexible array members
</li><li> <a href="language/array.html#Variable-length_arrays" title="c/language/array">Variable-length array</a> (VLA) types and variably-modified (VM) types
</li><li> Improvements of <span class="t-spar">braced-init-list</span> for <a href="language/array_initialization.html" title="c/language/array initialization">array</a>, <a href="language/struct_initialization.html" title="c/language/struct initialization">struct and union</a> types
<ul><li> Non-constant initializers
</li><li> Designated initializers
</li></ul>
</li><li> Idempotent cvr-qualifiers
</li><li> Trailing comma in <a href="language/enum.html" title="c/language/enum"><span class="t-spar">enumerator-list</span></a>
</li><li> Hexadecimal <a href="language/floating_constant.html" title="c/language/floating constant">floating constants</a>
</li><li> <a href="language/compound_literal.html" title="c/language/compound literal">Compound literals</a>
</li><li> Floating-point environment
</li><li> Requiring truncation for divisions of signed integer types
</li><li> Implicit <span class="t-c"><span class="mw-geshi c source-c"><span class="kw1">return</span> <span class="nu0">0</span><span class="sy4">;</span></span></span> in the <a href="language/main_function.html" title="c/language/main function"><code>main()</code> function</a>
</li><li> Declarations and statements in mixed order
</li><li> <span class="t-spar">init-statement</span> in <a href="language/for.html" title="c/language/for"><tt>for</tt></a> loops
</li><li> <a href="language/inline.html" title="c/language/inline"><tt>inline</tt></a> functions
</li><li> Predefined variable <a href="language/function_definition.html" title="c/language/function definition"><tt>__func__</tt></a>
</li><li> Cvr-qualifiers and <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">static</span></span></span> in <span class="t-c"><span class="mw-geshi c source-c"><span class="br0">[</span><span class="br0">]</span></span></span> within function declarations
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</li><li> <a href="preprocessor/impl.html" title="c/preprocessor/impl"><tt>_Pragma</tt></a> preprocessor operator
</li><li> Standard pragmas for floating-point evaluation
<ul><li> <code>STDC</code> <a href="preprocessor/impl.html" title="c/preprocessor/impl"><tt>FENV_ACCESS</tt></a>
</li><li> <code>STDC</code> <a href="preprocessor/impl.html" title="c/preprocessor/impl"><tt>FP_CONTRACT</tt></a>
</li><li> <code>STDC</code> <a href="preprocessor/impl.html" title="c/preprocessor/impl"><tt>CX_LIMITED_RANGE</tt></a>
</li></ul>
</li></ul>
<h3><span class="mw-headline" id="Feature_test_macros_for_optional_features">Feature test macros for optional features</span></h3>
<ul><li> <a href="preprocessor/replace.html" title="c/preprocessor/replace"><tt>__STDC_IEC_559__</tt></a>
<ul><li> Indicates IEEE-754 binary floating-point arithmetic and required math functions are supported.
</li></ul>
</li><li> <a href="preprocessor/replace.html" title="c/preprocessor/replace"><tt>__STDC_IEC_559_COMPLEX__</tt></a>
<ul><li> Indicates IEEE-754 complex arithmetic and required math functions are supported.
</li></ul>
</li><li> <a href="preprocessor/replace.html" title="c/preprocessor/replace"><tt>__STDC_HOSTED__</tt></a>
<ul><li> Indicates that the implementation is <a href="language/conformance.html" title="c/language/conformance">hosted</a>.
</li></ul>
</li><li> <a href="preprocessor/replace.html" title="c/preprocessor/replace"><tt>__STDC_ISO_10646__</tt></a>
<ul><li> Indicates that Unicode is used by the wide literal encodings and expands to the latest supported revision.
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</li><li> <a href="preprocessor/replace.html" title="c/preprocessor/replace"><tt>__STDC_MB_MIGHT_NEQ_WC__</tt></a>
<ul><li> Indicates that there are some characters in the basic character set having different code unit values in <a href="language/character_constant.html" title="c/language/character constant">ordinary and wide literal encodings</a>.
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<h2><span class="mw-headline" id="New_library_features">New library features</span></h2>
<h3><span class="mw-headline" id="New_headers">New headers</span></h3>
<ul><li> <code>&lt;complex.h&gt;</code>
</li><li> <code>&lt;fenv.h&gt;</code>
</li><li> <code>&lt;inttypes.h&gt;</code>
</li><li> <code>&lt;stdbool.h&gt;</code>
</li><li> <code>&lt;stdint.h&gt;</code>
</li><li> <code>&lt;tgmath.h&gt;</code>
</li></ul>
<h3><span class="mw-headline" id="Library_features">Library features</span></h3>
<ul><li> <a href="types/integer.html" title="c/types/integer">Aliases for integer types</a> 
<ul><li> Integer types with exact width (<code>int<i>N</i>_t</code> and <code>uint<i>N</i>_t</code>)
</li><li> Fastest integer types with at least given width (<code>int_fast<i>N</i>_t</code> and <code>uint_fast<i>N</i>_t</code>)
</li><li> Smallest integer types with at least given width (<code>int_least<i>N</i>_t</code> and <code>uint_least<i>N</i>_t</code>)
</li><li> Integer types capable for cast between object pointers (<span class="t-lc"><a href="types/integer.html" title="c/types/integer">intptr_t</a></span> and <span class="t-lc"><a href="types/integer.html" title="c/types/integer">uintptr_t</a></span>)
</li><li> Integer types with maximum width (<span class="t-lc"><a href="types/integer.html" title="c/types/integer">intmax_t</a></span> and <span class="t-lc"><a href="types/integer.html" title="c/types/integer">uintmax_t</a></span>)
</li></ul>
</li><li> Operations on <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">long</span> <span class="kw4">long</span></span></span> and <span class="t-lc"><a href="types/integer.html" title="c/types/integer">intmax_t</a></span>
<ul><li> <span class="t-lc"><a href="numeric/math/abs.html" title="c/numeric/math/abs">llabs()</a></span>
</li><li> <span class="t-lc"><a href="numeric/math/abs.html" title="c/numeric/math/abs">imaxabs()</a></span>
</li><li> <span class="t-lc"><a href="numeric/math/div.html" title="c/numeric/math/div">lldiv()</a></span>
</li><li> <span class="t-lc"><a href="numeric/math/div.html" title="c/numeric/math/div">imaxdiv()</a></span>
</li></ul>
</li><li> <a href="numeric/fenv.html" title="c/numeric/fenv">Floating-point environment access</a>
</li><li> Extended floating-point math functions
<ul><li> New floating-point math functions
</li><li> -<code>f</code> and -<code>l</code> variants for existing and new floating-point math functions
</li><li> <a href="numeric/math/math_errhandling.html" title="c/numeric/math/math errhandling">Math error handling</a>
</li></ul>
</li><li> <a href="numeric/complex.html" title="c/numeric/complex">Complex functions</a>
</li><li> <span class="t-lc"><a href="program/_Exit.html" title="c/program/ Exit">_Exit()</a></span>
</li><li> Formatting support for <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">long</span> <span class="kw4">long</span></span></span>, <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">unsigned</span> <span class="kw4">long</span> <span class="kw4">long</span></span></span>, <span class="t-lc"><a href="types/integer.html" title="c/types/integer">intmax_t</a></span>, and <span class="t-lc"><a href="types/integer.html" title="c/types/integer">uintmax_t</a></span>
<ul><li> <span class="t-lc"><a href="string/byte/atoi.html" title="c/string/byte/atoi">atoll()</a></span>
</li><li> <span class="t-lc"><a href="string/byte/strtoimax.html" title="c/string/byte/strtoimax">strtoimax()</a></span>
</li><li> <span class="t-lc"><a href="string/byte/strtol.html" title="c/string/byte/strtol">strtoll()</a></span>
</li><li> <span class="t-lc"><a href="string/byte/strtoul.html" title="c/string/byte/strtoul">strtoull</a></span>
</li><li> <span class="t-lc"><a href="string/byte/strtoimax.html" title="c/string/byte/strtoimax">strtoumax()</a></span>
</li><li> <span class="t-lc"><a href="string/wide/wcstoimax.html" title="c/string/wide/wcstoimax">wcstoimax()</a></span>
</li><li> <span class="t-lc"><a href="string/wide/wcstol.html" title="c/string/wide/wcstol">wcstoll()</a></span>
</li><li> <span class="t-lc"><a href="string/wide/wcstoul.html" title="c/string/wide/wcstoul">wcstoull()</a></span>
</li><li> <span class="t-lc"><a href="string/wide/wcstoimax.html" title="c/string/wide/wcstoimax">wcstoumax()</a></span>
</li></ul>
</li><li> <span class="t-lc"><a href="string/byte/isblank.html" title="c/string/byte/isblank">isblank()</a></span> and <span class="t-lc"><a href="string/wide/iswblank.html" title="c/string/wide/iswblank">iswblank()</a></span>
</li><li> <span class="t-lc"><a href="io/fprintf.html" title="c/io/fprintf">snprintf()</a></span> and <span class="t-lc"><a href="io/vfprintf.html" title="c/io/vfprintf">vsnprintf()</a></span>
</li><li> <span class="t-lc"><a href="io/vfscanf.html" title="c/io/vfscanf">vfscanf()</a></span> and <span class="t-lc"><a href="io/vfwscanf.html" title="c/io/vfwscanf">vfwscanf()</a></span> function families
</li><li> Extensions for <a href="io/fscanf.html" title="c/io/fscanf"><tt>fscanf()</tt></a> and <a href="io/fprintf.html" title="c/io/fprintf"><tt>fprintf()</tt></a> function families
<ul><li> <code>ll</code> length modifier for <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">long</span> <span class="kw4">long</span></span></span> and <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">unsigned</span> <span class="kw4">long</span> <span class="kw4">long</span></span></span>
</li><li> <code>hh</code> length modifier for <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">signed</span> <span class="kw4">char</span></span></span> and <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">unsigned</span> <span class="kw4">char</span></span></span>
</li><li> <code>l</code> length modifier for <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">double</span></span></span>
</li><li> <code>z</code> length modifier for <span class="t-lc"><a href="types/size_t.html" title="c/types/size t">size_t</a></span> and its signed version
</li><li> <code>t</code> length modifier for <span class="t-lc"><a href="types/ptrdiff_t.html" title="c/types/ptrdiff t">ptrdiff_t</a></span> and its unsigned version
</li><li> <code>j</code> length modifier for <span class="t-lc"><a href="types/integer.html" title="c/types/integer">intmax_t</a></span> and <span class="t-lc"><a href="types/integer.html" title="c/types/integer">uintmax_t</a></span>
</li><li> <code>a</code> conversion specifier for floating-point types
</li></ul>
</li><li> Numeric limit macros for <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">long</span> <span class="kw4">long</span></span></span> and <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">unsigned</span> <span class="kw4">long</span> <span class="kw4">long</span></span></span>
</li><li> Numeric limit macros corresponding to existing and new aliases for integer types
</li><li> <a href="types/integer.html#Format_macro_constants" title="c/types/integer">Format string macros for integer types</a>
</li><li> <a href="variadic/va_copy.html" title="c/variadic/va copy"><tt>va_copy</tt></a>
</li><li> <a href="numeric/tgmath.html" title="c/numeric/tgmath">Type-generic math macros</a>
</li><li> Floating-point comparison macros
</li><li> Floating-point classification macros
</li><li> Compatibility macros for <span class="t-c"><span class="mw-geshi c source-c">_Bool</span></span> (<a href="types.html" title="c/types"><tt>bool</tt></a>, <a href="types.html" title="c/types"><tt>true</tt></a>, and <a href="types.html" title="c/types"><tt>false</tt></a>)
</li></ul>
<h2><span class="mw-headline" id="Defect_reports">Defect reports</span></h2>
<p><a href="https://en.cppreference.com/mwiki/index.php?title=Template:c/language/history/DR99&amp;action=edit&amp;redlink=1" class="new" title="Template:c/language/history/DR99 (page does not exist)">Template:c/language/history/DR99</a>
</p>
<h2><span class="mw-headline" id="Compiler_support">Compiler support</span></h2>
<h3><span class="mw-headline" id="C99_core_language_features"> C99 core language features </span></h3>
<table class="metadata plainlinks ambox mbox-small-left ambox-notice" style=""><tr><td class="mbox-empty-cell"></td><td class="mbox-text" style="">This section is incomplete<br>Reason: needs to list C compilers, verification </td></tr></table>
<table class="wikitable tbody-scroll mw-collapsible" style="font-size:0.8em; width:100%">

<tr style="height:15em">
<th style="vertical-align:bottom;"> C99 feature<br> 
</th>
<th style="vertical-align:bottom;"> Paper(s)<br> 
</th>
<th style="width: 40pt;"> <div class="t-vertical"><div>GCC</div></div>
</th>
<th style="width: 40pt;"> <div class="t-vertical"><div>Clang</div></div>
</th>
<th style="width: 40pt;"> <div class="t-vertical"><div>MSVC</div></div>
</th>
<th style="width: 40pt;"> <div class="t-vertical"><div>Apple Clang</div></div>
</th>
<th style="width: 40pt;"> <div class="t-vertical"><div>EDG eccp</div></div>
</th>
<th style="width: 40pt;"> <div class="t-vertical"><div>Intel C++</div></div>
</th>
<th style="width: 40pt;"> <div class="t-vertical"><div>IBM XLC++</div></div>
</th>
<th style="width: 40pt;"> <div class="t-vertical"><div>Sun/Oracle C++</div></div>
</th>
<th scope="col" style="width: 40pt;"> <div class="t-vertical"><div>Embarcadero C++ Builder</div></div>
</th>
<th style="width: 40pt;"> <div class="t-vertical"><div>Cray</div></div>
</th>
<th style="width: 40pt;"> <div class="t-vertical"><div>Nvidia HPC C++ <br>(ex Portland Group/PGI)</div></div>
</th>
<th style="width: 40pt;"> <div class="t-vertical"><div>Nvidia nvcc</div></div>
</th>
<th>
</th></tr>
<tr>
<td> Universal-character-names in <a href="language/identifier.html" title="c/language/identifier">identifiers</a>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">3.1
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">Yes
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> Increased <a href="language/identifier.html#Translation_limits" title="c/language/identifier">translation limits</a>
</td>
<td> N590
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">0.9
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <span class="t-c"><span class="mw-geshi c source-c"><span class="co1">//</span></span></span> <a href="comment.html" title="c/comment">comments</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n644.htm">N644</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">2.7
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">Yes
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="language/restrict.html" title="c/language/restrict"><tt>restrict</tt></a> pointers
</td>
<td> N448
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">2.95
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">Yes
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> Enhanced <a href="language/arithmetic_types.html" title="c/language/arithmetic types">arithmetic types</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n815.htm">N815</a><br><a rel="nofollow" class="external text" href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n601.ps">N601</a><br><a rel="nofollow" class="external text" href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n620.ps">N620</a><br><a rel="nofollow" class="external text" href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n638.ps">N638</a><br><a rel="nofollow" class="external text" href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n657.ps">N657</a><br><a rel="nofollow" class="external text" href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n694.ps">N694</a><br><a rel="nofollow" class="external text" href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n809.ps">N809</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">Yes
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe">partial
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> Flexible array members
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">3.0
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">Yes
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="language/array.html#Variable-length_arrays" title="c/language/array">Variable-length array</a> (VLA) types
</td>
<td> <a rel="nofollow" class="external text" href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n683.htm">N683</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">0.9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">Yes
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> Variably-modified (VM) types
</td>
<td> <a rel="nofollow" class="external text" href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2778.pdf">N2778</a>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">Yes
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> Designated initializers
</td>
<td> <a rel="nofollow" class="external text" href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n494.pdf">N494</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">3.0
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">Yes
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> Non-constant initializers
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">1.21
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> Idempotent cvr-qualifiers
</td>
<td> N505
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">3.0
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> Trailing comma in <a href="language/enum.html" title="c/language/enum"><span class="t-spar">enumerator-list</span></a>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">0.9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">Yes
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> Hexadecimal <a href="language/floating_constant.html" title="c/language/floating constant">floating constants</a>
</td>
<td> N308
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">2.8
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">Yes
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="language/compound_literal.html" title="c/language/compound literal">Compound literals</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n716.htm">N716</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">3.1
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">Yes
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> Floating-point environment
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe">partial
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe">partial
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> Requiring truncation for divisions of signed integer types
</td>
<td> <a rel="nofollow" class="external text" href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n617.htm">N617</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">0.9
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> Implicit <span class="t-c"><span class="mw-geshi c source-c"><span class="kw1">return</span> <span class="nu0">0</span><span class="sy4">;</span></span></span> in the <a href="language/main_function.html" title="c/language/main function"><code>main()</code> function</a>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">Yes
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">Yes
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> Declarations and statements in mixed order
</td>
<td> <a rel="nofollow" class="external text" href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n740.htm">N740</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">3.0
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">Yes
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <span class="t-spar">init-statement</span> in <a href="language/for.html" title="c/language/for"><tt>for</tt></a> loops
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">Yes
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">Yes
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="language/inline.html" title="c/language/inline"><tt>inline</tt></a> functions
</td>
<td> <a rel="nofollow" class="external text" href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n741.htm">N741</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">4.3
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">Yes
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> Predefined variable <a href="language/function_definition.html" title="c/language/function definition"><tt>__func__</tt></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n611.ps">N611</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">2.95
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">Yes
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> Cvr-qualifiers and <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">static</span></span></span> in <span class="t-c"><span class="mw-geshi c source-c"><span class="br0">[</span><span class="br0">]</span></span></span> within function declarations
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">3.1
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">Yes
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="preprocessor/replace.html" title="c/preprocessor/replace">Variadic macros</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n707.htm">N707</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">2.95
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">Yes
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="preprocessor/impl.html" title="c/preprocessor/impl"><tt>_Pragma</tt></a> preprocessor operator
</td>
<td> <a rel="nofollow" class="external text" href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n634.ps">N634</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">3.0
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">Yes
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> Standard pragmas for floating-point evaluation
</td>
<td> <a rel="nofollow" class="external text" href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n631.htm">N631</a><br><a rel="nofollow" class="external text" href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n696.ps">N696</a>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"> No
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"> No
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">Yes
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">Yes
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
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<th style="vertical-align:bottom;"> C99 feature<br> 
</th>
<th style="vertical-align:bottom;"> Paper(s)<br> 
</th>
<th> <div class="t-vertical"><div>GCC</div></div>
</th>
<th> <div class="t-vertical"><div>Clang</div></div>
</th>
<th> <div class="t-vertical"><div>MSVC</div></div>
</th>
<th> <div class="t-vertical"><div>Apple Clang</div></div>
</th>
<th> <div class="t-vertical"><div>EDG eccp</div></div>
</th>
<th> <div class="t-vertical"><div>Intel C++</div></div>
</th>
<th> <div class="t-vertical"><div>IBM XLC++</div></div>
</th>
<th> <div class="t-vertical"><div>Sun/Oracle C++</div></div>
</th>
<th> <div class="t-vertical"><div>Embarcadero C++ Builder</div></div>
</th>
<th> <div class="t-vertical"><div>Cray</div></div>
</th>
<th> <div class="t-vertical"><div>Nvidia HPC C++</div></div>
</th>
<th> <div class="t-vertical"><div>Nvidia nvcc</div></div>
</th></tr></table>

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